fu_udev_device_ioctl() interprets the return value of ioctl() as the
error cause and generates a misleading error message (permission
denied).
Fix it to use errno for error checking and reporting.
We happily fallback with an unset -Defi_os_dir and it gets confusing explaining
why the EFI dir needs to be set on a non-supported system.
In practice they'll probably have the same eventual value on most supported
distributions.
Fixes https://github.com/fwupd/fwupd/issues/2873
The objcopy tool only has support for pei-x86_64 and pei-i386 targets, and
so trying to add a .sbat section for fwupdaa64.efi fails with this error:
objcopy: plugins/uefi-capsule/efi/fwupdaa64.efi: file format not recognized
To fix this issue, add the .sbat section to the ELF fwup.so shared object
and keep that section when generating the resulting fwupdaa64.efi binary.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
The Secure Boot Advanced Targeting (SBAT) [0] is a Generation Number Based
Revocation mechanism that is meant to replace the DBX revocation file list.
Binaries must contain a .sbat data section that has a set entries, each of
them consisting of UTF-8 strings as comma separated values. Allow to embed
this information into the fwupd EFI binary at build time.
The SBAT metadata must contain at least two entries. One that defines the
SBAT version used and another one that defines the component generation.
Downstream users can add additional entries if have changes that make them
diverge from the upstream code and potentially add other vulnerabilities.
[0]: https://github.com/rhboot/shim/blob/sbat/SBAT.md
The only real value of the optionrom plugin is the ability to store and verify
the ROM checksum; parsing the image is not actually required and is a source of
anxiety for various security teams.
There are now two 'backends' of device plug/unplug events, and there is about
to become three. Rather than just adding two more vfuncs for every backend type
define common ones that all providers can use.
Also fix up the existing in-tree plugins to use the new vfunc names and filter
on the correct GType.
